Hi Turner!
The recommend way to download this plugin is via git. Git allows you to:
Quickly upgrade by fetching only changed files for the last update
Track local changes that you have made
Easily revert files back to their default condition
See what changes would occur before performing an upgrade
Continuously merge your local changes with our future updates.
If for what ever reason you do not want to use git, then you can download a tagged release as indicated from the documentation: https://docs.solidnet.software/blesta-cerb/getting-started/install/#download-direct
As mentioned, you will need to name the folder cerberus.
I did take your feedback and update documentation website to make sure to emphases to name the folder cerberus within the plugins folder.
Hope this helps.
-Adam